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New Delhi, Jun 10: Petrol price on Wednesday was hiked by 40 paise per litre and diesel by 45 paise, the fourth straight daily increase in rates after oil PSUs ended an 82-day hiatus in rate revision. Petrol price in Delhi was hiked to Rs 73.40 per litre from Rs 73, while diesel rates were increased to Rs 71.62 a litre from Rs 71.17, according to a price notification of state oil marketing companies.

Rates have been increased across the country and vary from state to state depending on the incidence of local sales tax or VAT.

This is the fourth daily increase in rates in a row since oil companies on Sunday restarted revising prices in line with costs, after ending an 82-day hiatus.

In four hikes, petrol price has gone up by Rs 2.14 per litre and diesel by Rs 2.23.

Latest petrol, diesel prices in top cities:

New Delhi: Petrol ₹73.40. Diesel ₹71.62

Gurgaon: Petrol ₹72.86. Diesel ₹64.90

Mumbai: Petrol ₹80.40. Diesel ₹70.35

Chennai: Petrol ₹77.43. Diesel ₹70.13

Hyderabad: Petrol ₹76.20. Diesel ₹70b

Bengaluru: Petrol ₹75.77. Diesel ₹68.09

Washington, Apr 23: Air pollution over northern India has plummeted to a 20-year-low for this time of the year, according to satellite data published by US space agency National Aeronautics and Space Administration (NASA).
The US space agency's satellite sensors observed aerosol levels at a 20-year low post the countrywide lockdown, implemented to slow the spread of the novel coronavirus.

"We knew we would see changes in atmospheric composition in many places during the lockdown," said Pawan Gupta, a Universities Space Research Association (USRA) scientist at NASA''s Marshall Space Flight Center. "But I have never seen aerosol values so low in the Indo-Gangetic Plain at this time of year," added Mr Gupta.

Acting Assistant Secretary of State for South and Central Asia Alice G Wells tweeted, "These images from NASA were taken each spring starting in 2016 and show a 20-year low in airborne particle levels over India. When India and the world are ready to work and travel again, let's not forget that collaborative action can result in cleaner air."

The data published with maps show aerosol optical depth (AOD) in 2020 compared to the average for 2016-2019. Aerosol optical depth is a measure of how light is absorbed or reflected by airborne particles as it travels through the atmosphere.

If aerosols are concentrated near the surface, an optical depth of 1 or above indicates very hazy conditions. An optical depth, or thickness, of less than 0.1 over the entire atmospheric vertical column is considered "clean." The data were retrieved by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite.

In the first few days of the lockdown, it was difficult to observe a change in the pollution signature. "We saw an aerosol decrease in the first week of the shutdown, but that was due to a combination of rain and the lockdown," said Mr Gupta.

Around March 27, heavy rain poured over vast areas of northern India and helped clear the air of aerosols. Aerosol concentrations usually increase again after such heavy precipitation.

"After the rainfall, I was really impressed that aerosol levels did not go up and return to normal. We saw a gradual decrease and things have been staying at the level we might expect without anthropogenic emissions," Mr Gupta said.

On March 25, the Indian government placed its 1.3 billion citizens under a strict lockdown to reduce the spread of COVID-19. The countrywide mandate decreased activity at factories and severely reduced car, bus, truck and airplane traffic. Every year, aerosols from anthropogenic (human-made) sources contribute to unhealthy levels of air pollution in many Indian cities.

Aerosols are tiny solid and liquid particles suspended in the air that reduce visibility and can damage the human lungs and heart.

In southern India though, the story is a little hazier. Satellite data show aerosol levels have not yet decreased to the same extent. In fact, levels seem to be slightly higher than in the past four years. The reasons are unclear but could be related to recent weather patterns, agricultural fires, winds or other factors.

"This a model scientific experiment," Robert Levy, program leader for NASA's MODIS aerosol products, said about the lockdown and its effects on pollution.

"We have a unique opportunity to learn how the atmosphere reacts to sharp and sudden reductions in emissions from certain sectors. This can help us separate how natural and human sources of aerosols affect the atmosphere," Mr Levy added.

Washington, Apr 3: The World Bank has approved USD 1 billion emergency funding for India to help it tackle the coronavirus pandemic, which has claimed 76 lives and infected 2,500 people in the country.

The World Bank's first set of aid projects, amounting to USD 1.9 billion, will assist 25 countries, and new operations are moving forward in over 40 nations using the fast-track process, the bank said on Thursday.

The largest chunk of the emergency financial assistance has gone to India USD 1 billion.

"In India, USD 1 billion emergency financing will support better screening, contact tracing, and laboratory diagnostics; procure personal protective equipment; and set up new isolation wards," the World Bank said after its Board of Executive Directors approved the first set of emergency support operations for developing countries around the world, using a dedicated, fast-track facility for COVID-19 response.

In South Asia, the World Bank also approved USD 200 million for Pakistan, USD 100 million for Afghanistan, USD 7.3 million for the Maldives and USD 128.6 million for Sri Lanka.

The World Bank said it was now working to grant up to USD 160 billion over the next 15 months to support measures to tackle the pandemic which will focus on the immediate health consequences and bolster economic recovery.

The broader economic program will aim to shorten the time to recovery, create conditions for growth, support small and medium enterprises, and help protect the poor and vulnerable.

"The World Bank Group is taking broad, fast action to reduce the spread of COVID-19 and we already have health response operations moving forward in over 65 countries," said World Bank Group President David Malpass.

"We are working to strengthen (the) developing nations' ability to respond to the COVID-19 pandemic and shorten the time to economic and social recovery," Malpass said.

According to the bank, USD 100 million will support Afghanistan to slow and limit the spread of COVID-19 through enhanced detection, surveillance, and laboratory systems, as well as strengthen essential health care delivery and intensive care.

In Pakistan, USD 200 million will support preparedness and emergency response in the health sector and include social protection and education measures, the bank said.

A total of 1,002,159 COVID-19 cases have been reported across more than 175 countries and territories with 51,485 deaths reported so far, according to Johns Hopkins University data.